Abstract Dynamic load modeling has been a forefront topic in power systems research for decades. Studies have shown that accurate load models are needed to capture the true behavior of the grid to certain events. However, in the Eastern Interconnection (EI) Multi-regional Modeling Working Group (MMWG) 2030 power grid model, static load models are still commonly used. This paper discusses the process to develop and implement an interconnection-level dynamic load model using the complex load (CLOD) model in PSSE. The model is applied to 25,000 loads in the EI MMWG case and the frequency response is analyzed and compared between the existing static load model and the dynamic CLOD model. Considering a case study of 4.5 GW loss of generation, the CLOD model introduces larger inter-area oscillations that impact system stability. The parameters developed for the CLOD model have been validated against real frequency measurements captured using the FNET/Grideye system and are found to have higher accuracy than the static load model.

中文翻译：

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大规模动态负载建模对美国东部互联中频率响应的影响

摘要 数十年来，动态负载建模一直是电力系统研究的前沿课题。研究表明，需要准确的负载模型来捕捉电网对某些事件的真实行为。然而，在东部互联（EI）多区域建模工作组（MMWG）2030电网模型中，仍然普遍使用静负荷模型。本文讨论了在 PSSE 中使用复杂负载 (CLOD) 模型开发和实现互连级动态负载模型的过程。该模型在 EI MMWG 情况下应用于 25,000 个负载，并对现有静态负载模型和动态 CLOD 模型的频率响应进行了分析和比较。考虑到 4.5 GW 发电损失的案例研究，CLOD 模型引入了更大的区域间振荡，影响系统稳定性。